Find out even more about the history and global impact that the O’Brien Clan have made by visiting our recommended links resources:
- O’Brien Clan of Ireland
- O’Brien Family History
- O’Brien American History
- The O’Brien Dynasty
- Brian Boru
- O’Brien’s Tower
- Watch a short video of the O’Brien Clan History
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Check out genealogy links from various official bodies in Ireland:
- The National Archives of Ireland website
- Census of Ireland 1901 to 1911
- General Register Office for Republic of Ireland
- Public Record Office of Northern Ireland
- General Register Office for Northern Ireland
- Church of Ireland Genealogy Information
- Presbyterian Historical Society of Ireland
- National Library of Ireland
- Discover Ireland